Bottle Auto Air Value

[michael fearn]

I need 3 auto air value for my CH system. Any suggestions to a good quality 15mm product. I was going to buy the unbranded screwfix ones but some of the reviews are terrible.

Thanks folks.

 

[ShaunCorbs]

Manual air vents with an upstand tube once bled you won’t need to bleed them again

 

[Pickwickpick]

As shauncorbs says, go for manual ones, theres nothing to really go wrong with them, auto ones are to prone to leaking for very little benefit over manual ones.

 

[townfanjon]

Manual air vents never seem to last 2 mins on a mucky system.

 

[ShaunCorbs]

Auto air vents never seem to last 2 mins on a mucky system.

..

 

[SimonG]

Prefer a nice manual air vent, nice bit of pipe underneath.

 

[michael fearn]

If I were to go auto which do people suggest .

 

[mfgs]

Put a decent lever valve before the auto air vent. Will make future maintenance easier. They all leak sooner or later.

 

[ShaunCorbs]

there not designed to be left open you know so you will have to close / tighten the bleed screw?

have a look at a sprio rv 2

 

[Last Plumber]

As above really. Most cheap AAV's will leak eventually and become a nuisance or do damage. There is a Commercial one I do rate quite highly but it will cost a pretty penny and probably be overkill on domestic. I would go for the manual as other suggest. Once vented a system should not suffer with air issues, as long as it has been installed correctly.